allen



- A. J. CURTIS.

(No Model) Spring Bed.

7 No. 238,029. Patentedfll-b. 22.1881.

WITNESSES ATTORNEYS.

N PETERS, PHOTO LHHUGRAFME UNITED STATES PATENT OFFICE- ANDREW J.CURTIS, ()I MONROE, MAINE, ASSIGNOB TO HIMSELF, ALLEN M. BACHELDER, FREDL. PALMER,AND FRANCIS J. BAILEY, OF SAME PLACE.

SPRING-BED.

SPECIFICATION formingpart of Letters Patent No. 238,029, dated February22, 1881,

Application filed November 30, 1880. (No model.)

To all whom it may concern:

Be it known that 1, ANDREW J. CURTIS, of Monroe, in the county of Waldoand State of Maine, have invented a new and Improved Spring-Bed, ofwhich the following is a specification.

The object of this invention is to construct a spring-bed with springsthat can move only in a vertical plane, and whose ends are so securedthatthey cannot injure the mattress; and the object is, further, toprovide an improved device for adjusting and holding the head of the bedat any desired angle.

'The invention consists of rows of upright spiral springs whose enlargedtops are connected with each other and theinclosing bedframe by ringsand braces in such a manner that they can move only in a perpendicularline, so that when compressed the spirals of the springs shall not comein contact with each other, said springs having their upper ends firmlyand unyieldingly secured to their bodies to prevent their lateralcontraction and expansion and it consists, further, in hinging an end ofthe bed, so that it may be adjusted and held at any desired elevation,with hinges provided with pivoted segmental slides and locking eccentrichand-levers, all of which will be hereinafter described.

Figure 1 is a plan view of the bed. Fig. 2 is a sectional side elevationon line y y, Fig. 1. Fig. 3 is a sectional end elevation on line a: 00,Fig. 1. Fig. 4. is a perspective view of a spiral spring. Fig. 5 is aperspective view of a hinge in position.

Similar letters of reference indicate corresponding parts.

In the accompanying drawings, A represents the frame of the bed, and B Bthe bottom cross-slats.

C C are the spiral springs, of conical form, secured at their smallerends, by screws or pins aor other convenient device, to the slats B B,said springs C C being arranged in parallel rows, as shown. In eachspring C a short vertical bend, b, is made in the upper spiral, and theupperend of the spring is formed into an eye, a, and firmly hooked andclosed about said bend b, to prevent said end from slipping,

and also to prevent it from catching in the mattress that may be placedon the bed, and by this device the spring C is prevented from expandingor contracting laterally, and its top is, in effect, formed into a rigidring', that is much preferable for upholstering purposes to rings thatyield laterally under pressure. The springs C C are connected to eachother, and to the frame A, by solid rings D and solid braces E, and acentral row of connecting spiral-spring braces, F, serves to increasethe elasticity of the bed, and to permitit to assume an easy curve fromside to side. The solid rings D are set in parallel rows between thesprings C, and between said springs C and the sides and ends of theframe A, on a level with the tops of said springs C, and are connectedwith said springs C and frame A by the braces E. Some of the braces Ealsoex tend from each spring C directly to the adjoining ones and to theframe A, as shown, without connecting with rings D. The braces E, thatare connected with the frame A, have their ends secured therein bystaples d d, or other convenient device.

The frame A is jointed at one end and provided with hinges G G on itsopposite sides, each hinge Gr having a fixed ledge or stop, f, at thelower end of one arm thereof, and having a lever, 9, provided with aneccentric, g, secured on its inner face, pivoted above stop f, andhaving pivoted on the other arm a segmental guide, h, whose free endextends between the s'top f and the lever-eccentric g, so that when thehinged end of the frame A is raised the lever y can be made to press theguide It firmly against the upper edge of the stop f, and thereby holdsaid hinged end of the frame A at any desired elevation. By releasingthe pressure of the lever g from the guide It the hinged end of theframe A can be elevated to any desired position.

I am aware that spiral springs having their upper ends secured to thebody so as. to form loose sliding joints to permit the expansion andcontraction of the springs have been used in beds; but I am not awarethat spiral springs constructed as those herein shown and de scribedhave before been used and I am aware 2. The combination, with thebed-frame A, of the hinges G, provided with stop f, lever 9, havingeccentric g, and segmental guide h, substantially as herein shown anddescribed, whereby the hinged portion of said frame may be held at anydesired elevation, as set forth.

ANDREW J. CURTIS.

that in beds the springs have before been connected by rings and braces;hence I do not broadly claim said rings and braces.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A spring-bed constructed, substantially as hereinshown and described, with rigidtopped spiral springs 0, rings D, bracesE, Witnesses: and central spiral-spring braces, 1*, arranged GEO. H.FISHER, substantially as herein shown and described. F. A. PIPER.

